From 7e3a29d5e4564406c91ada436b1e33d53d1232cf Mon Sep 17 00:00:00 2001
From: Cengizhan Pasaoglu <cengizhanpasaoglu@gmail.com>
Date: Wed, 9 Aug 2023 04:34:21 +0300
Subject: [PATCH] Strip static and shared libraries of iwasm to reduce the
 binary size (#2431)

Reduce iwasm static and shared library size when CMAKE_STRIP is set and the
build type is "Release". It remains as it is when build type was selected Debug.
---
 CMakeLists.txt | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c879949..fbea2616 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -107,6 +107,11 @@ endif ()
 
 set (WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 
+# Set the strip command based on the system (GNU or Clang)
+if (CMAKE_STRIP)
+    set (CMAKE_STRIP_FLAGS "--strip-all")
+endif ()
+
 include (${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
 
 set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wformat -Wformat-security -Wshadow -Wno-unused-parameter")
@@ -141,6 +146,15 @@ endif ()
 
 install (TARGETS iwasm_static ARCHIVE DESTINATION lib)
 
+# If it's a Release build, strip the static library
+if (CMAKE_STRIP AND CMAKE_BUILD_TYPE STREQUAL "Release")
+  # Strip static library
+  message (STATUS "Stripping static library after build!")
+  add_custom_command (TARGET iwasm_static POST_BUILD
+      COMMAND ${CMAKE_STRIP} ${CMAKE_STRIP_FLAGS} $<TARGET_FILE:iwasm_static>
+  )
+endif ()
+
 # SHARED LIBRARY
 add_library (iwasm_shared SHARED ${WAMR_RUNTIME_LIB_SOURCE})
 set_target_properties (iwasm_shared PROPERTIES OUTPUT_NAME iwasm)
@@ -162,3 +176,12 @@ install (FILES
     ${WAMR_ROOT_DIR}/core/iwasm/include/wasm_export.h
     ${WAMR_ROOT_DIR}/core/iwasm/include/lib_export.h
     DESTINATION include)
+
+# If it's a Release build, strip the shared library
+if (CMAKE_STRIP AND CMAKE_BUILD_TYPE STREQUAL "Release")
+  # Strip shared library
+  message (STATUS "Stripping shared library after build!")
+  add_custom_command (TARGET iwasm_shared POST_BUILD
+      COMMAND ${CMAKE_STRIP} ${CMAKE_STRIP_FLAGS} $<TARGET_FILE:iwasm_shared>
+  )
+endif ()